Question

2. Find the value of :
1. p+ 2q, +3 r, when p=1, q=5 , r=2
2. 2a+4b+5c ,when a=5 , b=10 , c=20
3. 3a-2b , when a=8, b=10​
with process

Answer 1

Answer:

(i) p + 2q + 3r

= 1 + 2 × 5 + 3 × 2

= 1 + 10 + 6 = 17

(ii) 2a + 4b + 5c

= 2 × 5 + 4 × 10 + 5 × 20

= 10 + 40 + 100 = 150

(iii) 3a – 2b = 3 × 8 – 2 × 10

= 24 – 20 = 4

Answer 2

Answer:

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Step-by-step explanation:

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